Industrial truck



lll

lill) Lili CHARLES S. SCEREDER, F STAMFORB, CONNEC'IL'CUT; ASSGNOR TC) THE YALE @n TOWNS@ WL'NUFCTURING CDMPANY, 'OF STMFORID, CONNECTBLCUT.

INDUSTRAL TRUCK.

Application tiled January 1.8, i921, Serial No. fii. Renewed October 24, 1923.

To all wi'om l? may Comer-n.;

Be it known that l, CHARLES', Fl. Scimmiannn, a citizen of the United `States. and a resident of filtarnford?I in the county of Fairield and State ot' Connecticut, have inventeelcertain new and useful improvements in Industrial Trucks; and l do hereby declare the following to be a full. clear, and exact description of the invention, suoli as will enable others skilled in the art to which it appertains to make and nse the Same ',lliis'inifention relates to Wheeled' elevating devices, and more nartioularly to ele-vating trucks adapted for use in Warehouses, railroad stations, ete., the object being to produce a simple. ellicieut construction possessing various advantages over the trueli's -noiv in use.

lfilith this object in view my invention consists in a drofp trame trui-k mounted on wheels, tivo of which are driving steering; wheels, the lranie being provided with vertical column guides which support the eeratingplat'orn'i Wliieh is raised and lowered by Hexible supportingmeans actuated b v a motoru l It further consists in a truck the elevating platform of nlneh is adaptedto be loaded with anjv material o articles of weight not exceeding the Capacity of the, machine and to readilyv transport, elevate, lower or (leposit said material er articles .in a location and on any relative level Within the vrange or the machine and at the will of the operator7 the elevatine n'ieans including yielding means lor talon;r up the slack in 'the supporting means. I

lr invention 'farther consists in the details of vonsraetion as will be more fully explained and'pointed out in the elaiins.

ln tlie aeeoinpanying drawings: Figure l is a viele in side elevation of a truck-enibodyingj my invention and Figure 2 is a view in section on the line 2-2.

5 and bers mounted respeetivelgi on the wheels 'l' and Si the latter oi wliieh are tlrivenby a motor or motors and nn'uintedto turn for steering in am7 of the i/vell known manners.

Secured to the trarne' members 5 adjacent one end ot the latter are the vparallel vertical guides or .elevating platform supporting members 9 which are riveted at their lower ends to the frame 5 anni connected at the top by the' channel iron 9, and riveted to the o reinesent the track traine inem-- and reversing switch l5 all Ael* which are within Convenient reach oli' standing on the platform 16 is the elevating platform the Side flanges 17 of which are in. planes outside o' the members 5 mi1 the truck, so that, when the platform 16 is in its lowermost posithe operator 'tion it Will rest on the truek. tii'ame 5, with its side arms or flanges il" overhanging the sides of the latter and if desired projecting beyond its Jfree end as shown in dotted lines in Figure l. l

lntegral with the side members or flanges l? of the elevating platform lo, are the up- 'ardly extending arms i8, one on each side ot ,the elevator` which arms extend upwardly at the outer sidesof the column guides 9 and terminate in Airont of the latter, the said tree ends carrying a shaft with rollers '15) thereon whieh bear against the t'ront faces of the two eolinnn guides 9 and operate to support the platform 16 in its horizontal position. The side frames or flanges li' are provided in plane belowthe rollers l5) and at the rear ol the column guides l) with the/rollers 2O which latter bear against the rear edges of the latter in a horizontal plane, below the rollers 19. The rollers lf), and Q0 embracing and bearing against the opposite* sides ot the column guides. operate to hold the elevating platform 16 in a horizontal position, and prevent frietional Contact between the latter and the vertical Column guides.

The forward ends of the arms l? ol' the elevating platform lo terminate in front of the vertical guides 9 and are connected by the shaft 2l which carries the rollers 19 as above explained. This shaftI is preferably fixed to the extensions 18 and the rollers 19 are journalleol ontlie shaft and as previously explained bear against the front, face or the 'vertial columns 9.

22 are suitable springs each secured at lim Eil

EEO

its opper emi to shaft 21 ami at its lower endto cham oi* cable,vpieei'afnly ehaixi 23 as shown, each. which latter passes dem c Waicly around a pocket sii-.eave 2e, up and atomici idler sheaves 25 located the 'tope of the "vertieal galilei; and. thee flown to extension 18 otite@ elevati #Y plat# ,mawaidly form 16 and to ithe i vr'n Oval "i 4'? \}.A1 ha (rn-"rhs eux-Lne.. aegee o ci ne omet? L M ma iengee being at the meer eleco orf; .1' tical columns While the exteiieioiie preferably at the outeirsidcs.

Secured to shaft 26 is the Worm Wheel 2 9 which is covered by the housing 29 and ptetn ezably submerged in oil. Thie wheel 28 meshes with the Worm 30 actuated by the electric motoi.n 3l connected with the storage battery lO9 the moto? and cli-ain eriving mechanism lbeng located below the elevated portion of the truck frame, i

The idler pulleys 25 may be secured to ,or joumallecl on the shaft 32 secured or mountec'i at its ends in the bearings 33 secuxfecl to the inner faces of the vetieal guides 9 meer the top of lattes', t

These guifles may loelo'f any height desired to provide for any desired' lift olf-the plat om, and the construction suoli that the load on the plattform is borne oy the extensions 18 of the 'platform 15, the iiting and holding ci? the platform in elevatedL poeition being' of couse accoi'nplslied by the v chains.

/Vitli this coostructio1i, int 'rpcetion of the eptings Q2 in the chain anni constitute a flexible medium tends to lessen the stain o :fread shock and otliey binding' etfains that would. eie- .ve'cjp in a rigid hoist opei'ntefl on uneven gioulici. Again by f tpplymg epiiog to j Having fully 'cleeciibe my intention that lf claim as new and desii'e to secure lay Lettere-Patent is l. in a self propelled elevating ti'uol, the eom'oinaticmv out a iiame having an operator@ platform, storage battey and motor at one take 'up any and ali slack guinea; en Said frame the emile of the said iet'oi'ei located on 'the e thereof, the Seid movable plattoim '.Laviir-Lgg extension-s at one enel, the said e f-iieions having bearing; against said guides the :front and rear et 'the liartntecy and ielfxilnle means the two enfle of 'which alte Coene-@ted te the extensioia at the oppo deel. elet' meme en opeatoyle ige battery and a.. mot-oi mit? a one eral tuer-eci? @einem gait/ies Sealife@ to saisi ame interim liate the fancies a ieo'vabe platloiei locateo ai the oppoeite eed. ulgitfeid eztlemeione at ite :f'oot eiifs eaiiied by Seial eeeione ami bearL l'eepeetivey against me front rem e?? the guiee ami flexible means acmat-ee?.

of a truck frame mounted on. Wheels, vele tical guides on said iame ali-rl located mtei mediate the ende thereof, a movable plat! P form ocatecl at one emol ci said frame amil having upwardly projecting exiteigieiene, rclleis cari'ieof.' by the platfoim and said mo Ward exteiisiene and. bearing reepcetii7e ,7 against front anni ieai faces of the vee tical guides, exblelfting means conf nect'er at both ende to the platform and motor actoateii driving means located at the opposite enti of the :frame and eigaging said, flexible lifting me of the iattei le. au elevating t'iiclf? the eemliieotion of a mounteii on Wheeise vertice?, geidee intermediate ends of frame? mov able piatformjlocated et. one

and guided lits movememe lay Said guideeyexiile i'fitiig meatie nested. botll of its 'the ai" passing around a 1- the top and inettom o3? the guide?y motta actuated dx'ving'g located at the eppoeite enel. of said iframe? ami miga@ w. laid iexilole lifting means: ilite'fmedi" elevatiee" im?.v me mounted irame guided, in its movements; guiee, lexibie liiftiii both enfle 'to said like constituting a fc? v'eiitieei tiefste Vertieal eotea at A. termi, a spring eairi flexible means by the Jreoto1 amt coneeetetl at'ite L ne intermediate the ende up miie sia-efe', in the Same and.

f3, o. an cfievating time@ the combina-l tion of a iframe mountefli on Wheels andi provided ntermeoiate its enge" with Vertical guides, alitting platform located at one end of the frame and, guided by said. guides, and

a moto? and, storage battery iocate at tloeCO opposite end of said frame, exibla means onnectec at one end to said platform, assmg ovaal' sheaves adjacent zhe tops 0i the guides and under sheaves near the bottom and cbnnected at its other ends to he' plat form', 'and means aqtuated by' the motmandf engaging sind exllble means mtarmdalte flts'ands for atuatmg the laier.

M testimony whereof, have signed` this spclcahqn 1n the pasenca o two sub- 10 scrlbmg wltnesses.

CHARLES S., SCHRGEBEQ. Wtnesss:

' R. W. UANDLER? P. S. lr'mmmg, 

